Days of Sales Inventory, commonly known as DOSI, is a metric used to measure how quickly an organization is able to convert inventory into sales. It’s typically expressed as the average number of days it takes for the business to turn its entire stock into revenue. In other words, it’s an important indicator of how efficiently the business utilizes its inventory – and ultimately, whether it’s maximizing its profits. By keeping a close eye on their DOSI numbers, businesses can identify trends and take proactive steps to improve their bottom line.